Issue |
Parasite
Volume 8, Number 4, December 2001
|
|
---|---|---|
Page(s) | 349 - 353 | |
DOI | https://doi.org/10.1051/parasite/2001084349 | |
Published online | 02 September 2014 |
Note de recherche
Description and ultrastructure of Leishmania zuckermani n. sp. amastigotes detected within the erythrocytes of the South African gecko Pachydactylus turneri Gray, 1864
Description et ultrastructure d'amastigotes de Leishmania zuckermani n. sp. dans les érythrocytes du gecko d'Afrique du Sud Pachydactylus turneri Gray, 1864
1
Department of Animal Sciences, Faculty of Agriculture, Food and Environmental Quality Sciences of the Hebrew University of Jerusalem, Rehovot 76-100, Israel.
2
Laboratoire de Biologie Parasitaire, Protistologie, Helminthologie, Muséum National d'Histoire Naturelle, 61, Rue Buffon, 75231 Paris Cedex 05, France.
3
Tierpark Hagenbeck gGmbH, Postfach 540930, 22509 Hamburg, Germany.
4
Laboratoire de Biologie Parasitaire (MNHN) et Laboratoire de Protozoologie et Parasitologie (EPHE), 61, Rue Buffon, 75231 Paris Cedex 05, France.
* Correspondence : I. Landau. Fax : 33 (0)1 40 79 34 99. E-mail : landau@cimr1.mnhn.fr
Received:
14
December
2000
Accepted:
10
October
2001
In erythrocytes recovered from blood of geckoes of the species Pachydactylus turneri collected in Gauteng Province, Republic of South Africa, Leishmania zuckermani n. sp. were detected. Giemsa stained erythrocytes contained amastigotes, either single or numerous, in loose assemblies or in a compact rounded aggregates which may condense to become a round basophilic bodies with a central hollow. This new species of Leishmania differs from all previously described species in being almost exclusively parasitic in circulating erythrocytes. Three to seven amastigotes lodged all within one, or divided between several parasitophorous vacuoles were detected at the EM level. The amastigotes demonstrated essentially all the cytological components characteristic of leishmania species known to parasitize mammals. A point which emphasizes an already suggested close affiliation between mammalian and lizard Leishmania.
Résumé
Les érythrocytes de geckos Pachydactylus turneri capturés dans la province de Gauteng, République d'Afrique du Sud, hébergent Leishmania zuckermani n. sp. Après coloration au Giemsa, on note la présence d'un ou de plusieurs amastigotes disposés en un ensemble lâche ou en un aggrégat rond et compact qui peut se condenser pour former un corps basophile arrondi présentant une cavité centrale. Cette nouvelle espèce de Leishmania diffère de celles déjà décrites par sa localisation presque exclusive dans les érythrocytes circulants. L'étude en microscopie électronique montre des érythrocytes infectés par trois à sept amastigotes, localisés dans une ou plusieurs vacuoles parasitophores. Les stades amastigotes de L. zuckermani possèdent les organites cellulaires caractéristiques des leishmanies parasites de mammifères. Ceci renforce l'idée, déjà émise, d'une proche filiation entre les leishmanies de mammifères et celles de lézards.
Key words: Leishmania zuckermani n. sp. / amastigates / intraerythrocytic / Pachydactylus turneri / South Africa / ultrastructure
Mots clés : Leishmania zuckermani n. sp. / amastigotes / érythrocyte / Pachydactylus turneri / Afrique du Sud / ultrastructure
© PRINCEPS Editions, Paris, 2001, transferred to Société Française de Parasitologie
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